Maybe if your main use case is as an activity tracker, you’re probably right. But for me it’s a phone extension. I think Garmins are mainly sport watches with some smart features and the Apple watch is the opposite. Calling someone using siri, or doing things with siri in general are features I use all the time. Apple watch for me is a phone that I can use when cooking and taking care of a toddler at the same time without ever touching it. Garmin simply can’t do it. Alexa is not that great and the general integration is obviously not as good as Apple.
Why? I use siri all the time and it’s useful